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Finding the Fourth Proportional to 340,041.36, 509,729.22 and 126,652.62

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Solution

The fourth proportional to 340,041.36, 509,729.22 and 126,652.62 is: 189,854.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,041.36 : 509,729.22 = 126,652.62 : x
  2. Step 2: Convert to fraction form
    340,041.36/509,729.22 = 126,652.62/x
  3. Step 3: Cross multiply
    340,041.36x = 509,729.22 × 126,652.62
  4. Step 4: Simplify right side
    340,041.36x = 64,558,541,203.56
  5. Step 5: Solve for x
    x = 64,558,541,203.56/340,041.36
  6. Step 6: Final answer
    x = 189,854.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.